./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-06-19_11-23-25.files/mutex-meet-nonrel/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7724a2de Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i ./goblint.2024-06-19_11-23-25.files/mutex-meet-nonrel/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-7724a2d-m [2024-06-28 01:05:41,706 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-28 01:05:41,771 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-28 01:05:41,775 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-28 01:05:41,776 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-28 01:05:41,795 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-28 01:05:41,796 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-28 01:05:41,796 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-28 01:05:41,797 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-28 01:05:41,797 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-28 01:05:41,798 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-28 01:05:41,798 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-28 01:05:41,799 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-28 01:05:41,799 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-28 01:05:41,799 INFO L153 SettingsManager]: * Use SBE=true [2024-06-28 01:05:41,800 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-28 01:05:41,800 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-28 01:05:41,800 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-28 01:05:41,801 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-28 01:05:41,801 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-28 01:05:41,801 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-28 01:05:41,802 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-28 01:05:41,802 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-28 01:05:41,803 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-28 01:05:41,803 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-28 01:05:41,803 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-28 01:05:41,804 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-28 01:05:41,804 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-28 01:05:41,805 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-28 01:05:41,805 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-28 01:05:41,805 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-28 01:05:41,806 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-28 01:05:41,806 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-28 01:05:41,806 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-28 01:05:41,807 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-28 01:05:41,807 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-28 01:05:41,808 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-28 01:05:41,808 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-28 01:05:41,808 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-28 01:05:41,809 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-28 01:05:41,809 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-28 01:05:41,810 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-28 01:05:41,810 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-28 01:05:41,810 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-06-28 01:05:42,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-28 01:05:42,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-28 01:05:42,039 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-28 01:05:42,041 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-28 01:05:42,041 INFO L274 PluginConnector]: CDTParser initialized [2024-06-28 01:05:42,042 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i [2024-06-28 01:05:43,178 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-28 01:05:43,452 INFO L384 CDTParser]: Found 1 translation units. [2024-06-28 01:05:43,452 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i [2024-06-28 01:05:43,464 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80a9b7d3a/c1e02eca6a6f468d9556c5d2573e806d/FLAG39911f434 [2024-06-28 01:05:43,475 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80a9b7d3a/c1e02eca6a6f468d9556c5d2573e806d [2024-06-28 01:05:43,477 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-28 01:05:43,478 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-28 01:05:43,479 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/mutex-meet-nonrel/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.yml/witness.yml [2024-06-28 01:05:43,608 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-28 01:05:43,610 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-28 01:05:43,611 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-28 01:05:43,611 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-28 01:05:43,615 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-28 01:05:43,616 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.06 01:05:43" (1/2) ... [2024-06-28 01:05:43,617 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2363c94f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:05:43, skipping insertion in model container [2024-06-28 01:05:43,617 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.06 01:05:43" (1/2) ... [2024-06-28 01:05:43,619 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@24e410d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:05:43, skipping insertion in model container [2024-06-28 01:05:43,619 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 28.06 01:05:43" (2/2) ... [2024-06-28 01:05:43,622 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2363c94f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:05:43, skipping insertion in model container [2024-06-28 01:05:43,622 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 28.06 01:05:43" (2/2) ... [2024-06-28 01:05:43,623 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-28 01:05:43,668 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-28 01:05:43,670 INFO L97 edCorrectnessWitness]: Location invariant before [L701-L701] (((! multithreaded || (C_locked || g == 0)) && (! multithreaded || (g == 0 || g == 5))) && (! multithreaded || (B_locked || (g == 0 || g == 5)))) && (! multithreaded || (A_locked || g == 0)) [2024-06-28 01:05:43,670 INFO L103 edCorrectnessWitness]: ghost_variable B_locked = 0 [2024-06-28 01:05:43,670 INFO L103 edCorrectnessWitness]: ghost_variable A_locked = 0 [2024-06-28 01:05:43,670 INFO L103 edCorrectnessWitness]: ghost_variable C_locked = 0 [2024-06-28 01:05:43,671 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-28 01:05:43,671 INFO L106 edCorrectnessWitness]: ghost_update [L687-L687] C_locked = 1; [2024-06-28 01:05:43,672 INFO L106 edCorrectnessWitness]: ghost_update [L706-L706] A_locked = 1; [2024-06-28 01:05:43,672 INFO L106 edCorrectnessWitness]: ghost_update [L702-L702] C_locked = 1; [2024-06-28 01:05:43,672 INFO L106 edCorrectnessWitness]: ghost_update [L693-L693] B_locked = 0; [2024-06-28 01:05:43,672 INFO L106 edCorrectnessWitness]: ghost_update [L707-L707] B_locked = 1; [2024-06-28 01:05:43,672 INFO L106 edCorrectnessWitness]: ghost_update [L704-L704] C_locked = 0; [2024-06-28 01:05:43,672 INFO L106 edCorrectnessWitness]: ghost_update [L695-L695] A_locked = 0; [2024-06-28 01:05:43,673 INFO L106 edCorrectnessWitness]: ghost_update [L686-L686] A_locked = 1; [2024-06-28 01:05:43,673 INFO L106 edCorrectnessWitness]: ghost_update [L690-L690] B_locked = 0; [2024-06-28 01:05:43,673 INFO L106 edCorrectnessWitness]: ghost_update [L691-L691] B_locked = 1; [2024-06-28 01:05:43,673 INFO L106 edCorrectnessWitness]: ghost_update [L688-L688] B_locked = 1; [2024-06-28 01:05:43,673 INFO L106 edCorrectnessWitness]: ghost_update [L710-L710] A_locked = 0; [2024-06-28 01:05:43,674 INFO L106 edCorrectnessWitness]: ghost_update [L709-L709] B_locked = 0; [2024-06-28 01:05:43,674 INFO L106 edCorrectnessWitness]: ghost_update [L705-L705] B_locked = 0; [2024-06-28 01:05:43,674 INFO L106 edCorrectnessWitness]: ghost_update [L701-L701] B_locked = 1; [2024-06-28 01:05:43,674 INFO L106 edCorrectnessWitness]: ghost_update [L694-L694] C_locked = 0; [2024-06-28 01:05:43,675 INFO L106 edCorrectnessWitness]: ghost_update [L700-L700] multithreaded = 1; [2024-06-28 01:05:43,717 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-28 01:05:43,888 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i[1105,1118] [2024-06-28 01:05:44,050 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-28 01:05:44,065 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-28 01:05:44,104 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i[1105,1118] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-28 01:05:44,181 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-28 01:05:44,226 INFO L206 MainTranslator]: Completed translation [2024-06-28 01:05:44,227 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:05:44 WrapperNode [2024-06-28 01:05:44,227 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-28 01:05:44,229 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-28 01:05:44,229 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-28 01:05:44,230 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-28 01:05:44,237 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:05:44" (1/1) ... [2024-06-28 01:05:44,257 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:05:44" (1/1) ... [2024-06-28 01:05:44,287 INFO L138 Inliner]: procedures = 162, calls = 43, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 91 [2024-06-28 01:05:44,287 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-28 01:05:44,288 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-28 01:05:44,288 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-28 01:05:44,289 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-28 01:05:44,298 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:05:44" (1/1) ... [2024-06-28 01:05:44,299 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:05:44" (1/1) ... [2024-06-28 01:05:44,312 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:05:44" (1/1) ... [2024-06-28 01:05:44,336 INFO L175 MemorySlicer]: Split 17 memory accesses to 4 slices as follows [2, 5, 5, 5]. 29 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-06-28 01:05:44,337 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:05:44" (1/1) ... [2024-06-28 01:05:44,337 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:05:44" (1/1) ... [2024-06-28 01:05:44,341 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:05:44" (1/1) ... [2024-06-28 01:05:44,344 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:05:44" (1/1) ... [2024-06-28 01:05:44,345 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:05:44" (1/1) ... [2024-06-28 01:05:44,347 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:05:44" (1/1) ... [2024-06-28 01:05:44,352 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-28 01:05:44,352 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-28 01:05:44,353 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-28 01:05:44,353 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-28 01:05:44,353 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:05:44" (1/1) ... [2024-06-28 01:05:44,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-28 01:05:44,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-28 01:05:44,385 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-06-28 01:05:44,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-06-28 01:05:44,417 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-28 01:05:44,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-28 01:05:44,418 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-06-28 01:05:44,418 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-06-28 01:05:44,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-28 01:05:44,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-28 01:05:44,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-28 01:05:44,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-06-28 01:05:44,419 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-28 01:05:44,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-28 01:05:44,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-28 01:05:44,421 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-28 01:05:44,597 INFO L244 CfgBuilder]: Building ICFG [2024-06-28 01:05:44,599 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-28 01:05:44,854 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-28 01:05:44,855 INFO L293 CfgBuilder]: Performing block encoding [2024-06-28 01:05:45,033 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-28 01:05:45,035 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-28 01:05:45,036 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.06 01:05:45 BoogieIcfgContainer [2024-06-28 01:05:45,036 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-28 01:05:45,038 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-28 01:05:45,039 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-28 01:05:45,042 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-28 01:05:45,042 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.06 01:05:43" (1/4) ... [2024-06-28 01:05:45,044 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@485b31ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.06 01:05:45, skipping insertion in model container [2024-06-28 01:05:45,044 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 28.06 01:05:43" (2/4) ... [2024-06-28 01:05:45,044 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@485b31ff and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 28.06 01:05:45, skipping insertion in model container [2024-06-28 01:05:45,044 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:05:44" (3/4) ... [2024-06-28 01:05:45,044 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@485b31ff and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 28.06 01:05:45, skipping insertion in model container [2024-06-28 01:05:45,045 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.06 01:05:45" (4/4) ... [2024-06-28 01:05:45,046 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i [2024-06-28 01:05:45,060 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-28 01:05:45,061 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-06-28 01:05:45,061 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-28 01:05:45,090 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-06-28 01:05:45,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 54 places, 52 transitions, 111 flow [2024-06-28 01:05:45,145 INFO L124 PetriNetUnfolderBase]: 2/51 cut-off events. [2024-06-28 01:05:45,146 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-06-28 01:05:45,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 51 events. 2/51 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2024-06-28 01:05:45,148 INFO L82 GeneralOperation]: Start removeDead. Operand has 54 places, 52 transitions, 111 flow [2024-06-28 01:05:45,151 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 45 places, 42 transitions, 87 flow [2024-06-28 01:05:45,159 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-28 01:05:45,166 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@22f20a88, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-28 01:05:45,166 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-06-28 01:05:45,170 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-28 01:05:45,171 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-06-28 01:05:45,171 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-28 01:05:45,171 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:05:45,172 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-28 01:05:45,173 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-06-28 01:05:45,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:05:45,182 INFO L85 PathProgramCache]: Analyzing trace with hash 275928055, now seen corresponding path program 1 times [2024-06-28 01:05:45,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:05:45,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524198144] [2024-06-28 01:05:45,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:05:45,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:05:45,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:05:45,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:05:45,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:05:45,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524198144] [2024-06-28 01:05:45,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524198144] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:05:45,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:05:45,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-28 01:05:45,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838821271] [2024-06-28 01:05:45,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:05:45,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-28 01:05:45,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:05:45,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-28 01:05:45,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-28 01:05:45,467 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 52 [2024-06-28 01:05:45,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 42 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:05:45,472 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:05:45,472 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 52 [2024-06-28 01:05:45,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:05:45,631 INFO L124 PetriNetUnfolderBase]: 112/341 cut-off events. [2024-06-28 01:05:45,634 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-06-28 01:05:45,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 599 conditions, 341 events. 112/341 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1603 event pairs, 82 based on Foata normal form. 21/353 useless extension candidates. Maximal degree in co-relation 589. Up to 185 conditions per place. [2024-06-28 01:05:45,638 INFO L140 encePairwiseOnDemand]: 47/52 looper letters, 31 selfloop transitions, 3 changer transitions 0/51 dead transitions. [2024-06-28 01:05:45,638 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 51 transitions, 173 flow [2024-06-28 01:05:45,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-28 01:05:45,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-28 01:05:45,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 100 transitions. [2024-06-28 01:05:45,652 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6410256410256411 [2024-06-28 01:05:45,654 INFO L175 Difference]: Start difference. First operand has 45 places, 42 transitions, 87 flow. Second operand 3 states and 100 transitions. [2024-06-28 01:05:45,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 51 transitions, 173 flow [2024-06-28 01:05:45,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 51 transitions, 172 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-28 01:05:45,664 INFO L231 Difference]: Finished difference. Result has 47 places, 41 transitions, 95 flow [2024-06-28 01:05:45,666 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=95, PETRI_PLACES=47, PETRI_TRANSITIONS=41} [2024-06-28 01:05:45,670 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 2 predicate places. [2024-06-28 01:05:45,671 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 41 transitions, 95 flow [2024-06-28 01:05:45,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:05:45,672 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:05:45,672 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:05:45,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-28 01:05:45,673 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-06-28 01:05:45,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:05:45,675 INFO L85 PathProgramCache]: Analyzing trace with hash 329893925, now seen corresponding path program 1 times [2024-06-28 01:05:45,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:05:45,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083133333] [2024-06-28 01:05:45,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:05:45,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:05:45,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:05:45,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:05:45,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:05:45,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083133333] [2024-06-28 01:05:45,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083133333] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:05:45,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:05:45,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-28 01:05:45,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451507324] [2024-06-28 01:05:45,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:05:45,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-28 01:05:45,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:05:45,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-28 01:05:45,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-28 01:05:45,942 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 52 [2024-06-28 01:05:45,943 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 41 transitions, 95 flow. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:05:45,943 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:05:45,944 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 52 [2024-06-28 01:05:45,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:05:46,105 INFO L124 PetriNetUnfolderBase]: 143/401 cut-off events. [2024-06-28 01:05:46,112 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2024-06-28 01:05:46,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 780 conditions, 401 events. 143/401 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1901 event pairs, 74 based on Foata normal form. 12/400 useless extension candidates. Maximal degree in co-relation 768. Up to 181 conditions per place. [2024-06-28 01:05:46,118 INFO L140 encePairwiseOnDemand]: 43/52 looper letters, 38 selfloop transitions, 8 changer transitions 7/67 dead transitions. [2024-06-28 01:05:46,119 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 67 transitions, 259 flow [2024-06-28 01:05:46,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-28 01:05:46,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-28 01:05:46,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 142 transitions. [2024-06-28 01:05:46,125 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5461538461538461 [2024-06-28 01:05:46,125 INFO L175 Difference]: Start difference. First operand has 47 places, 41 transitions, 95 flow. Second operand 5 states and 142 transitions. [2024-06-28 01:05:46,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 67 transitions, 259 flow [2024-06-28 01:05:46,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 67 transitions, 249 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-28 01:05:46,129 INFO L231 Difference]: Finished difference. Result has 53 places, 45 transitions, 146 flow [2024-06-28 01:05:46,130 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=146, PETRI_PLACES=53, PETRI_TRANSITIONS=45} [2024-06-28 01:05:46,130 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 8 predicate places. [2024-06-28 01:05:46,131 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 45 transitions, 146 flow [2024-06-28 01:05:46,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:05:46,131 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:05:46,131 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:05:46,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-28 01:05:46,132 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-06-28 01:05:46,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:05:46,135 INFO L85 PathProgramCache]: Analyzing trace with hash 423822702, now seen corresponding path program 1 times [2024-06-28 01:05:46,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:05:46,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677245216] [2024-06-28 01:05:46,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:05:46,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:05:46,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:05:46,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:05:46,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:05:46,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677245216] [2024-06-28 01:05:46,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677245216] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:05:46,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:05:46,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-28 01:05:46,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532468680] [2024-06-28 01:05:46,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:05:46,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-28 01:05:46,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:05:46,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-28 01:05:46,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-28 01:05:46,274 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 52 [2024-06-28 01:05:46,274 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 45 transitions, 146 flow. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:05:46,275 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:05:46,275 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 52 [2024-06-28 01:05:46,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:05:46,430 INFO L124 PetriNetUnfolderBase]: 132/425 cut-off events. [2024-06-28 01:05:46,430 INFO L125 PetriNetUnfolderBase]: For 165/173 co-relation queries the response was YES. [2024-06-28 01:05:46,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 923 conditions, 425 events. 132/425 cut-off events. For 165/173 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2209 event pairs, 20 based on Foata normal form. 3/426 useless extension candidates. Maximal degree in co-relation 907. Up to 112 conditions per place. [2024-06-28 01:05:46,433 INFO L140 encePairwiseOnDemand]: 42/52 looper letters, 49 selfloop transitions, 11 changer transitions 3/81 dead transitions. [2024-06-28 01:05:46,433 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 81 transitions, 370 flow [2024-06-28 01:05:46,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-28 01:05:46,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-28 01:05:46,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 168 transitions. [2024-06-28 01:05:46,435 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6461538461538462 [2024-06-28 01:05:46,435 INFO L175 Difference]: Start difference. First operand has 53 places, 45 transitions, 146 flow. Second operand 5 states and 168 transitions. [2024-06-28 01:05:46,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 81 transitions, 370 flow [2024-06-28 01:05:46,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 81 transitions, 360 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-06-28 01:05:46,443 INFO L231 Difference]: Finished difference. Result has 59 places, 53 transitions, 222 flow [2024-06-28 01:05:46,443 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=222, PETRI_PLACES=59, PETRI_TRANSITIONS=53} [2024-06-28 01:05:46,444 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 14 predicate places. [2024-06-28 01:05:46,444 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 53 transitions, 222 flow [2024-06-28 01:05:46,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:05:46,445 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:05:46,445 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:05:46,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-28 01:05:46,445 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-06-28 01:05:46,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:05:46,446 INFO L85 PathProgramCache]: Analyzing trace with hash 816750892, now seen corresponding path program 1 times [2024-06-28 01:05:46,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:05:46,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861659721] [2024-06-28 01:05:46,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:05:46,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:05:46,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:05:46,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:05:46,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:05:46,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861659721] [2024-06-28 01:05:46,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861659721] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:05:46,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:05:46,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-28 01:05:46,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830443985] [2024-06-28 01:05:46,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:05:46,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-28 01:05:46,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:05:46,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-28 01:05:46,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-06-28 01:05:46,568 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 52 [2024-06-28 01:05:46,568 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 53 transitions, 222 flow. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:05:46,568 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:05:46,568 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 52 [2024-06-28 01:05:46,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:05:46,683 INFO L124 PetriNetUnfolderBase]: 112/385 cut-off events. [2024-06-28 01:05:46,684 INFO L125 PetriNetUnfolderBase]: For 428/432 co-relation queries the response was YES. [2024-06-28 01:05:46,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1020 conditions, 385 events. 112/385 cut-off events. For 428/432 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1952 event pairs, 51 based on Foata normal form. 9/390 useless extension candidates. Maximal degree in co-relation 1001. Up to 211 conditions per place. [2024-06-28 01:05:46,688 INFO L140 encePairwiseOnDemand]: 44/52 looper letters, 35 selfloop transitions, 10 changer transitions 6/69 dead transitions. [2024-06-28 01:05:46,688 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 69 transitions, 384 flow [2024-06-28 01:05:46,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-28 01:05:46,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-28 01:05:46,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 131 transitions. [2024-06-28 01:05:46,692 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6298076923076923 [2024-06-28 01:05:46,692 INFO L175 Difference]: Start difference. First operand has 59 places, 53 transitions, 222 flow. Second operand 4 states and 131 transitions. [2024-06-28 01:05:46,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 69 transitions, 384 flow [2024-06-28 01:05:46,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 69 transitions, 380 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-06-28 01:05:46,699 INFO L231 Difference]: Finished difference. Result has 62 places, 53 transitions, 239 flow [2024-06-28 01:05:46,700 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=239, PETRI_PLACES=62, PETRI_TRANSITIONS=53} [2024-06-28 01:05:46,701 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 17 predicate places. [2024-06-28 01:05:46,701 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 53 transitions, 239 flow [2024-06-28 01:05:46,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:05:46,702 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:05:46,702 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:05:46,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-28 01:05:46,702 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-06-28 01:05:46,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:05:46,703 INFO L85 PathProgramCache]: Analyzing trace with hash -2020819415, now seen corresponding path program 1 times [2024-06-28 01:05:46,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:05:46,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209502105] [2024-06-28 01:05:46,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:05:46,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:05:46,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:05:46,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:05:46,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:05:46,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209502105] [2024-06-28 01:05:46,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209502105] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:05:46,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:05:46,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-28 01:05:46,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857839751] [2024-06-28 01:05:46,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:05:46,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-28 01:05:46,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:05:46,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-28 01:05:46,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-06-28 01:05:46,905 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 52 [2024-06-28 01:05:46,906 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 53 transitions, 239 flow. Second operand has 6 states, 6 states have (on average 24.0) internal successors, (144), 6 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:05:46,907 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:05:46,907 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 52 [2024-06-28 01:05:46,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:05:46,996 INFO L124 PetriNetUnfolderBase]: 74/267 cut-off events. [2024-06-28 01:05:46,996 INFO L125 PetriNetUnfolderBase]: For 403/403 co-relation queries the response was YES. [2024-06-28 01:05:46,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 770 conditions, 267 events. 74/267 cut-off events. For 403/403 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1142 event pairs, 30 based on Foata normal form. 4/268 useless extension candidates. Maximal degree in co-relation 749. Up to 131 conditions per place. [2024-06-28 01:05:46,998 INFO L140 encePairwiseOnDemand]: 47/52 looper letters, 26 selfloop transitions, 7 changer transitions 3/51 dead transitions. [2024-06-28 01:05:46,998 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 51 transitions, 287 flow [2024-06-28 01:05:46,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-28 01:05:46,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-28 01:05:47,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 119 transitions. [2024-06-28 01:05:47,001 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5721153846153846 [2024-06-28 01:05:47,001 INFO L175 Difference]: Start difference. First operand has 62 places, 53 transitions, 239 flow. Second operand 4 states and 119 transitions. [2024-06-28 01:05:47,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 51 transitions, 287 flow [2024-06-28 01:05:47,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 51 transitions, 261 flow, removed 3 selfloop flow, removed 8 redundant places. [2024-06-28 01:05:47,005 INFO L231 Difference]: Finished difference. Result has 54 places, 44 transitions, 181 flow [2024-06-28 01:05:47,005 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=181, PETRI_PLACES=54, PETRI_TRANSITIONS=44} [2024-06-28 01:05:47,007 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 9 predicate places. [2024-06-28 01:05:47,007 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 44 transitions, 181 flow [2024-06-28 01:05:47,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 6 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:05:47,008 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:05:47,008 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:05:47,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-28 01:05:47,009 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-06-28 01:05:47,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:05:47,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1981019591, now seen corresponding path program 1 times [2024-06-28 01:05:47,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:05:47,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492594310] [2024-06-28 01:05:47,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:05:47,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:05:47,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:05:47,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:05:47,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:05:47,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492594310] [2024-06-28 01:05:47,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492594310] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:05:47,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:05:47,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-28 01:05:47,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566857779] [2024-06-28 01:05:47,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:05:47,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-28 01:05:47,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:05:47,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-28 01:05:47,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-28 01:05:47,096 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 52 [2024-06-28 01:05:47,097 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 44 transitions, 181 flow. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:05:47,097 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:05:47,097 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 52 [2024-06-28 01:05:47,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:05:47,186 INFO L124 PetriNetUnfolderBase]: 83/309 cut-off events. [2024-06-28 01:05:47,186 INFO L125 PetriNetUnfolderBase]: For 405/405 co-relation queries the response was YES. [2024-06-28 01:05:47,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 827 conditions, 309 events. 83/309 cut-off events. For 405/405 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1415 event pairs, 33 based on Foata normal form. 6/313 useless extension candidates. Maximal degree in co-relation 810. Up to 142 conditions per place. [2024-06-28 01:05:47,189 INFO L140 encePairwiseOnDemand]: 44/52 looper letters, 35 selfloop transitions, 9 changer transitions 6/65 dead transitions. [2024-06-28 01:05:47,189 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 65 transitions, 389 flow [2024-06-28 01:05:47,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-28 01:05:47,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-28 01:05:47,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 110 transitions. [2024-06-28 01:05:47,190 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7051282051282052 [2024-06-28 01:05:47,190 INFO L175 Difference]: Start difference. First operand has 54 places, 44 transitions, 181 flow. Second operand 3 states and 110 transitions. [2024-06-28 01:05:47,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 65 transitions, 389 flow [2024-06-28 01:05:47,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 65 transitions, 363 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-28 01:05:47,194 INFO L231 Difference]: Finished difference. Result has 54 places, 48 transitions, 226 flow [2024-06-28 01:05:47,194 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=226, PETRI_PLACES=54, PETRI_TRANSITIONS=48} [2024-06-28 01:05:47,197 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 9 predicate places. [2024-06-28 01:05:47,197 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 48 transitions, 226 flow [2024-06-28 01:05:47,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:05:47,198 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:05:47,198 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:05:47,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-28 01:05:47,198 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-06-28 01:05:47,199 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:05:47,199 INFO L85 PathProgramCache]: Analyzing trace with hash 861530141, now seen corresponding path program 2 times [2024-06-28 01:05:47,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:05:47,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020370158] [2024-06-28 01:05:47,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:05:47,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:05:47,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:05:47,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:05:47,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:05:47,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020370158] [2024-06-28 01:05:47,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020370158] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:05:47,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:05:47,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-28 01:05:47,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877278455] [2024-06-28 01:05:47,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:05:47,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-28 01:05:47,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:05:47,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-28 01:05:47,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-28 01:05:47,364 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 52 [2024-06-28 01:05:47,365 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 48 transitions, 226 flow. Second operand has 6 states, 6 states have (on average 24.0) internal successors, (144), 6 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:05:47,365 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:05:47,365 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 52 [2024-06-28 01:05:47,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:05:47,449 INFO L124 PetriNetUnfolderBase]: 46/230 cut-off events. [2024-06-28 01:05:47,449 INFO L125 PetriNetUnfolderBase]: For 418/418 co-relation queries the response was YES. [2024-06-28 01:05:47,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 659 conditions, 230 events. 46/230 cut-off events. For 418/418 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 981 event pairs, 16 based on Foata normal form. 22/246 useless extension candidates. Maximal degree in co-relation 641. Up to 94 conditions per place. [2024-06-28 01:05:47,450 INFO L140 encePairwiseOnDemand]: 42/52 looper letters, 17 selfloop transitions, 13 changer transitions 18/60 dead transitions. [2024-06-28 01:05:47,451 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 60 transitions, 394 flow [2024-06-28 01:05:47,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-28 01:05:47,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-28 01:05:47,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 145 transitions. [2024-06-28 01:05:47,452 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5576923076923077 [2024-06-28 01:05:47,452 INFO L175 Difference]: Start difference. First operand has 54 places, 48 transitions, 226 flow. Second operand 5 states and 145 transitions. [2024-06-28 01:05:47,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 60 transitions, 394 flow [2024-06-28 01:05:47,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 60 transitions, 371 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-06-28 01:05:47,455 INFO L231 Difference]: Finished difference. Result has 56 places, 39 transitions, 198 flow [2024-06-28 01:05:47,455 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=209, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=198, PETRI_PLACES=56, PETRI_TRANSITIONS=39} [2024-06-28 01:05:47,456 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 11 predicate places. [2024-06-28 01:05:47,456 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 39 transitions, 198 flow [2024-06-28 01:05:47,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 6 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:05:47,456 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:05:47,456 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:05:47,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-28 01:05:47,457 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-06-28 01:05:47,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:05:47,457 INFO L85 PathProgramCache]: Analyzing trace with hash 615416372, now seen corresponding path program 1 times [2024-06-28 01:05:47,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:05:47,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105131952] [2024-06-28 01:05:47,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:05:47,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:05:47,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:05:47,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:05:47,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:05:47,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105131952] [2024-06-28 01:05:47,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105131952] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:05:47,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:05:47,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-28 01:05:47,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158483644] [2024-06-28 01:05:47,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:05:47,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-28 01:05:47,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:05:47,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-28 01:05:47,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-06-28 01:05:47,599 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 52 [2024-06-28 01:05:47,599 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 39 transitions, 198 flow. Second operand has 6 states, 6 states have (on average 24.833333333333332) internal successors, (149), 6 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:05:47,599 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:05:47,599 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 52 [2024-06-28 01:05:47,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:05:47,646 INFO L124 PetriNetUnfolderBase]: 14/88 cut-off events. [2024-06-28 01:05:47,646 INFO L125 PetriNetUnfolderBase]: For 167/167 co-relation queries the response was YES. [2024-06-28 01:05:47,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 88 events. 14/88 cut-off events. For 167/167 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 262 event pairs, 0 based on Foata normal form. 8/95 useless extension candidates. Maximal degree in co-relation 256. Up to 49 conditions per place. [2024-06-28 01:05:47,647 INFO L140 encePairwiseOnDemand]: 49/52 looper letters, 0 selfloop transitions, 0 changer transitions 37/37 dead transitions. [2024-06-28 01:05:47,647 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 37 transitions, 244 flow [2024-06-28 01:05:47,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-28 01:05:47,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-28 01:05:47,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 110 transitions. [2024-06-28 01:05:47,648 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5288461538461539 [2024-06-28 01:05:47,648 INFO L175 Difference]: Start difference. First operand has 56 places, 39 transitions, 198 flow. Second operand 4 states and 110 transitions. [2024-06-28 01:05:47,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 37 transitions, 244 flow [2024-06-28 01:05:47,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 37 transitions, 224 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-28 01:05:47,649 INFO L231 Difference]: Finished difference. Result has 41 places, 0 transitions, 0 flow [2024-06-28 01:05:47,649 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=41, PETRI_TRANSITIONS=0} [2024-06-28 01:05:47,650 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, -4 predicate places. [2024-06-28 01:05:47,650 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 0 transitions, 0 flow [2024-06-28 01:05:47,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.833333333333332) internal successors, (149), 6 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:05:47,653 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 4 remaining) [2024-06-28 01:05:47,653 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2024-06-28 01:05:47,654 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2024-06-28 01:05:47,654 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-06-28 01:05:47,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-28 01:05:47,654 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2024-06-28 01:05:47,657 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-28 01:05:47,657 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-28 01:05:47,661 INFO L507 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-06-28 01:05:47,661 INFO L508 ceAbstractionStarter]: WitnessConsidered=1 [2024-06-28 01:05:47,662 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.06 01:05:47 BasicIcfg [2024-06-28 01:05:47,662 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-28 01:05:47,662 INFO L158 Benchmark]: Toolchain (without parser) took 4052.86ms. Allocated memory was 161.5MB in the beginning and 213.9MB in the end (delta: 52.4MB). Free memory was 100.9MB in the beginning and 80.8MB in the end (delta: 20.1MB). Peak memory consumption was 73.5MB. Max. memory is 16.1GB. [2024-06-28 01:05:47,662 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 161.5MB. Free memory is still 123.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-28 01:05:47,663 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 161.5MB. Free memory is still 105.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-28 01:05:47,663 INFO L158 Benchmark]: CACSL2BoogieTranslator took 616.91ms. Allocated memory is still 161.5MB. Free memory was 100.9MB in the beginning and 72.0MB in the end (delta: 28.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-06-28 01:05:47,663 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.50ms. Allocated memory is still 161.5MB. Free memory was 72.0MB in the beginning and 69.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-28 01:05:47,663 INFO L158 Benchmark]: Boogie Preprocessor took 63.43ms. Allocated memory is still 161.5MB. Free memory was 69.9MB in the beginning and 67.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-28 01:05:47,664 INFO L158 Benchmark]: RCFGBuilder took 683.73ms. Allocated memory is still 161.5MB. Free memory was 67.8MB in the beginning and 100.0MB in the end (delta: -32.2MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2024-06-28 01:05:47,664 INFO L158 Benchmark]: TraceAbstraction took 2624.01ms. Allocated memory was 161.5MB in the beginning and 213.9MB in the end (delta: 52.4MB). Free memory was 99.2MB in the beginning and 80.8MB in the end (delta: 18.4MB). Peak memory consumption was 71.7MB. Max. memory is 16.1GB. [2024-06-28 01:05:47,665 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 161.5MB. Free memory is still 123.8MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.16ms. Allocated memory is still 161.5MB. Free memory is still 105.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 616.91ms. Allocated memory is still 161.5MB. Free memory was 100.9MB in the beginning and 72.0MB in the end (delta: 28.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.50ms. Allocated memory is still 161.5MB. Free memory was 72.0MB in the beginning and 69.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.43ms. Allocated memory is still 161.5MB. Free memory was 69.9MB in the beginning and 67.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 683.73ms. Allocated memory is still 161.5MB. Free memory was 67.8MB in the beginning and 100.0MB in the end (delta: -32.2MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. * TraceAbstraction took 2624.01ms. Allocated memory was 161.5MB in the beginning and 213.9MB in the end (delta: 52.4MB). Free memory was 99.2MB in the beginning and 80.8MB in the end (delta: 18.4MB). Peak memory consumption was 71.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 701]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 70 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.5s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 222 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 201 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 73 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 578 IncrementalHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 73 mSolverCounterUnsat, 2 mSDtfsCounter, 578 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=239occurred in iteration=4, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 150 NumberOfCodeBlocks, 150 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 142 ConstructedInterpolants, 0 QuantifiedInterpolants, 720 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-28 01:05:47,698 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE